The Golden Age Premier GA-251 is a handmade large-diaphragm tube condenser microphone designed to deliver a tone inspired by the renowned Telefunken ELA M251 studio microphone for vocalists, musicians, and recording engineers in home, project, and commercial studios. Its 34mm capsule features a 34mm 6-micron Mylar diaphragm coated in gold and allows operation in a cardioid or omnidirectional polar pattern. The 136 dB maximum SPL and wide frequency response of 20 Hz to 20 kHz ensure full-range capture of sources ranging from quiet vocals to loud drums.
The carefully selected components include an NOS Phillip 5480W super-low noise pentode tube, a Solen high-balanced film coupling capacitor, a 10:1 AMI style dual bobbin transformer, and gold-plated connectors, the sum of which is a sound that aims for the essential qualities of a vintage Telefunken 251. The supplied XLR 7-pin proprietary mic cable boasts 99.99% pure oxygen-free copper, Teflon insulation, and high braid density. The GA-251 includes a power supply, shockmount, wood microphone case, and tweed-style flight case.
Carefully Selected Capsule
- Balanced sound response
- Smooth and warm sound character and a low noise level
- Long lifespan
The GA-251 amplifier features a proprietary circuit designed around the NOS 5840W tube.
Capacitors and Resistors
The capsule capacitor uses a NOS Siemens antique grade polystyrene capacitor to reduce loss.The tube cathode bypass capacitor uses an ELNA OFC Cerafine high end hifi capacitor from Japan with oxygen free copper connections exhibiting a very sweet and delicate character, not the least for vocals.
The other capacitors are of the low loss polystyrene type.
The resistor used for setting the capsule voltage is a high-quality DALE 1% metal film resistor. The result is a very stable and consistent operating level leading to better consistency between different GA-251 units.
The plate resistor uses a non-inductive resistor of the United States IRC audio with pure copper connections. The sound level is rich and full bodied.
Mic Interior and Cabling
PSU Transformer and Electrolytic Capacitors
The electrolytic capacitors are high-quality, audio-style units. A simple and effective circuit uses dual-stage filtering for the filament voltage. The high voltage is precisely filtered and stabilized using an ON Semiconductor zener diode.
The polar pattern switch is placed on the power supply so that the recording engineer can change the polar pattern between Cardioid and Omni remotely.
A ground lift switch will help to solve mains/power-related noise issues that can appear in some cases.
Proprietary Microphone Cable
- Selectable Cardioid or Omnidirectional
- 6-Micron, Gold-Coated Mylar Diaphragm
- NOS Phillip 5480W Low Noise Pentode Tube
- 10:1 AMI Style Dual Bobbin Transformer
- Gold-Plated Connectors
- High Maximum SPL: 136 dB
- 20 Hz to 20 kHz Frequency Response
- 99.99% OFC Braided XLR 7-Pin Cable
- Includes Power Supply and Shockmount
- Includes Flight Case and Wood Mic Case
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